Cooler for internal-combustion engines.



P. WEBER.

COOLER FOR INTERNAL COMBUSTION ENGINES.

, APPLICATION FILED OUT. 22, 1907.

947,424, Patented Jan. 25, 1910.

Fig.1.

UNITED STATES [PATENT OFFICE.

PAUL WEBER, 0F GENEVA, SWICIQERLAND, ASSIGNOR TO C. J'ULES MEGEVET, 0F GENE VA, SWITZERLAND.

Specification of Letters Patent.

Patented Jan. 2.5, '1910.

Application filed October 22. 1907. Serial No. 398.563.

To all whom it may concern:

Be it known that I, PAUL \Vnnnn, a subject of the Duke of Anhalt, and residing at Geneva, 4 Chem-in du Colombier, in the can ton of Geneva, Switzerland, have invented "certain new and useful Improvements in Coolers for Internal-Combustion Engines, of which the following is, a full, clear, and exact description.

This invention relates to an improved construction of rotary coolers or radiators for internal combustion engines, in which thecooling water of the c linder jackets is cooled to the lowest possible'degree by forcing it through the hollow vanes of a fanlike rotary cooler. The hubs that have been in use heretofore for the same purpose show the great disadvantage, that they were either not Watertight in consequence of their deficient construction or that they required more room than could be spared for them on an automobile, in which the greatest restriction as to space is required.

With thehub according to my invention these disadvantages are avoided by placing the rotating hub carrying the hollow vanes and their tube connections on a stationary axis or stud containing the necessary passages for the hot and the cooled water.

In the accompanying sheet of drawings:

Figure 1. is a front view of a rotary cooler with a hub constructed in accordance with the present invention; Fig. 2.. a sectional elevation, taken on .theline AB of Fig. 1; andFig. 3. shows a modified construction of a fan vane.

A stationary inner stud or axis f contains two passages g and h, leading to grooves o and p respectively of the hub 12. On the stud or axis 7 is journaled a hub b, capable of rotating thereon, the joint between them being watertight. 'At the inner end of the rotatable hub b is fixed or formed therewith a drawing pulley Z, which is driven from the pulley k on the shaft 2 of pump With the hub b are connected a number of hollow vanes c by means of short tubes in communicating with the inner ends thereof, and secured in corresponding holes of the hub 12. Tubes '6 connect the outer ends of the hollow vanes 0 with the hub bya second series of openings therein leading to the annular groove 1).

The openings for the short tubes m and f the tubes 6 lead to the grooves 0 and 7 respectively, forming a connecting passage for each series of tubes. The grooves 0 and 1) may be formed either in the axis f or in the hub b or in both, as preferred. I Insteadof solid. faced vanes such as those a above described and shown in Figs. 1. and 2, vanes such as are shown in Fig. 3 may be employed, which consists of an upper and alower chamb'er connected together by in terveniug tubes. The cooler is surrounded by a mantle a which may have supports (Z.

The cooler operates as follows: The pump 2' forces the hot water through the passage g, the roove 0 and tubes m into the rotatmg hol ow vanes 0. Here the water is cooled down and then passesback to the cylinder jacket of the engine (not shown) through tubes 6, groove]? and' passage h.

Having now described my invention what I claim and desire to secure by Letters Patent, is:

1. In a rotary cooler for internal combustion engines, the combination of a stationary stud having passages for hot and cooled water, with a hub journaled onthe stud and provided with two annular passages respectively in communication with the passages for hot and cooled water in the stud, a series of hollow vanes secured to and rotated by the hub, a series of passages connecting with the inner ends of the hollow vanes with the annular passage receiving the hot water, and a second series of passages from the outer ends of the hollow vines connecting with the annular passage receiving the cooled water.

2. In a rotary cooler for internal combustion engines, the combination of a stationary stud having passages for hot and cooled water, witha hub journaled on the stud and provided with two annular pas sages respectively in communication with the passages for hot and cooled water in the stud, a series of hollow vanes secured to and rotated by the hub, a series of passages connectiiig the inner ends of'the hollow vanes with the annular passage receiving the hot water, a second series of passages from the outer ends of the hollow vanes connecting with the annular passage receiving the cooled water, and a pump for circulating the water through the passages.

3. In a rotary cooler for internal combustion engines, thecombination of a stationary stud having passages for hot .a'iid cooled water, with a hub journaled on the stud and provided with two annular passages re x spectively in communication with the passages for hot and cooled water in the stud, a series of hollow vanes secured to and rotated by the hub, a series of passages conmeeting the inner ends of the hollow vanes with the annular passage receiving the hot water, a second series of passages from the, outer ends of the hollow vanes connecting with the annular passage receiving the cooled water, a pulley on the hub by which vit may be rotated, and apump for circulating the water through. the passages having a driving pulley for driving the hub and vanes.

4. In a rotary cooler for internal combustion engines, the combination of a fixed stud having two water passages, and a rotary cooling device comprising a central hub journaled on the fixed stud, aseries of hollow cooling vanes secured to the hub hot water passages connecting one end of the senses vanes with one of the water passages in the stud, and a series of passages for cooled whter connecting the other end of thevanes with the other of the passages in the stud.

5. A rotary water cooler for internal combustion engines having a hub provided with water passages, combined with a series of radial hollow vanes having air passages .between them, the inner ends of the hollow vanes communicating with a portion of the water passages of the hub, and water conduits from the outer ends of the hollow vanes independent of the body of the vanes,

i and connecting with another portion of the water passages in the hub, whereby water circulating in. the vanes is, during its passage through the vanes, subjected to two exposed surfaces which are directly cooled by the air..

PAUL WEBER. Witnesses BARN-rennin FEULJUY, F. VILLIER. 

